Home / 86,029.21-118,778.16-65,850.13

Finding the Fourth Proportional to 86,029.21, 118,778.16 and 65,850.13

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Solution

The fourth proportional to 86,029.21, 118,778.16 and 65,850.13 is: 90,917.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,029.21 : 118,778.16 = 65,850.13 : x
  2. Step 2: Convert to fraction form
    86,029.21/118,778.16 = 65,850.13/x
  3. Step 3: Cross multiply
    86,029.21x = 118,778.16 × 65,850.13
  4. Step 4: Simplify right side
    86,029.21x = 7,821,557,277.16
  5. Step 5: Solve for x
    x = 7,821,557,277.16/86,029.21
  6. Step 6: Final answer
    x = 90,917.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.